Birds, viruses, and history: The current 'genuine adventure'
When I went to medical school, we were taught that viruses couldn't jump from animals to humans. It looks like you can forget that rule.
J.D. CLOUGH

Avian influenza: A wake-up call from birds to humans
We can hope that a pandemic does not occur-or we can take proactive steps to prevent one. In particular, we must improve vaccination rates among patients and health care workers.
S. GORDON

For low platelets, how low is dangerous?
The answer depends on the cause of the thrombocytopenia and on whether surgery or childbirth is planned.
J.N. GEORGE

Antioxidant studies need a change of direction
A major flaw of the studies to date is that they failed to measure changes in levels of oxidative stress.
M.H. SHISHEHBOR and S.L. HAZEN

Minimally invasive surgery for morbid obesity
The new technique appears to be as effective as conventional open surgery in taking weight off and keeping it off.
F. BRODY

Premenstrual dysphoric disorder: A review for the treating practitioner
There are a variety of treatments for this severe form of premenstrual syndrome. Caution is needed with alternative therapies.
G. KAUR, L. GONSALVES, and H.L. THACKER

Recent trials of antioxidant therapy: What should we be telling our patients?
Evidence does not support the indiscriminate use of vitamins A, C, or E or beta carotene to prevent or reduce cardiovascular disease.
B.I. HASNAIN and A.D. MOORADIAN

Hypoglycemia in diabetes: Common, often unrecognized
Intensive diabetes control is beneficial but increases the risk of hypoglycemia. Over time, patients may lose the ability to sense hypoglycemia, increasing their risk.
I. GABRIELY and H. SHAMOON

Perioperative nutrition support: Who and how
Although nutrition support can decrease postoperative morbidity and mortality, some patients do worse with total parenteral nutrition than with standard care.
R.M. SALVINO, R.S. DECHICCO, and D.L. SEIDNER

Head injury: Which patients need imaging? Which test is best?
There is often uncertainty about which patients with a head injury need an imaging test, especially if the injury appears to be minor.
J. GLAUSER

Hyaluronic acid minimally effective for knee degenerative joint disease

Chest pain relief by nitroglycerin doesn't predict active coronary artery disease

Major bleeding risk with warfarin for deep vein thrombosis

Tricyclics, not SSRIs, effective for chronic back pain

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